某产品责任保险保单给定的每次事故赔偿限额是150万元，累计责任限额是1200万元，且

Madam Curie, ____ life had once been very hard, was given two Noble Prizes. [ ]

A. of whom

B. for whom

C. for whose

D. in whom

病毒是有细胞结构的微小生命体______．

A lot of buildings were ______ in the earthquake.[ ]

A. repaired  

B. rebuilt

C. destroyed  

D. hurt

根据颈椎的生物力学特性，最易发生颈椎退变的节段是（）

A.颈2～3

B.颈3～4

C.颈4～5

D.颈5～6

E.颈6～7

After the conference, the participants were scattered into smaller groups to have a free session of talks.

A. bee

B. donkey

C. cow

D. bull